Review on Universal Car HUD Head Up Display With Digital GPS Speedometer, MPH/KM Acceleration Time, Compass, Altitude & Driving Distance Monitoring - Overspeed Alarm HD LCD Display For All Vehicles by David Barit

Its very small. Don't be fooled by the pics. 3M mounting strip is useless and did not hold. I had to use Velcro. Very confusing set up with one toggle button on the top. That one button sets up everything and does not make the process easy one bit. Brightness is pretty decent but it will look better at night. For the price I wouldn't purchase. It's super cheap. Runs off satellite to calculate speed. That part is just ok.